i1 : MapExpression {a,b,c} o1 = a <----- b c o1 : Expression of class MapExpression
The object MapExpression is a header type, with ancestor classes Expression < BasicList < Thing.
The source of this document is in /build/reproducible-path/macaulay2-1.25.06+ds/M2/Macaulay2/packages/Macaulay2Doc/doc12.m2:132:0.